This document discusses critical power monitoring for data centers. It outlines compelling reasons for monitoring including mission critical availability, infrastructure utilization, cost management, and energy efficiency. It then describes applications of monitoring for power availability, energy savings, and outlines a typical data center monitoring solution. Finally, it details what components should be monitored like generators, UPS systems, cooling equipment and more. It claims the monitoring system provides high reliability, proactive maintenance, complete management of critical systems, and detailed cost allocation.

1. Critical Power
Data Centers Monitoring
Kresna Widodo
Schneider Electric Singapore

2. Agenda
● Compelling Reasons to Buy
● Applications
● Monitoring Solution
● Value Statements
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3. Compelling Reasons to Buy
● Mission Critical Availability (CAPEX)
Unplanned loss of Electrical Power to a Mission Critical Facility like a Data
Center or a Hospital can lead to an instant loss of millions of dollars and can
put peoples lives at severe risk
● Infrastructure Utilization (CAPEX)
Capital cost to build a data center infrastructure is high. Increasing the power
density within the same space is cheaper than building a new facility
● Infrastructure Cost Management (OPEX)
A 10 year life-cycle costs to supply the necessary infrastructure to a single
rack is exceeding hundreds of thousands of Dollars. With the high energy
costs these days, there is increasing needs for Data Center to better allocate
and recover this cost
● Energy Efficiency (OPEX)
Most Data Center operators recognize the economic and environmental need
to become more energy efficient, but less have developed “Green”
procurement criteria in the design specifications
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4. Applications
● Power Availability and Reliability
● Overall System Monitoring and Coordination
● Operations & Maintenance
● Root Cause Analysis (Alarming and Power Quality)
● Electrical Asset Utilization
● Building, floor, zone, UPS, PDU, rack
● Energy Savings
● Utility Bill Verification
● Energy Sub-billing/Cost Allocation
● Energy Usage Analysis
● Benchmarking and Analytics
● "Enterprise Wide" Monitoring
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5. Data Center Monitoring Solution
Typical Data Center Electrical Components
Utility Feeds Generators Transfer UPS Chillers, PDUs Racks
Switches CRAC,
HVAC
Power PLCs Power Branch
Quality Meter Circuit
Meter Monitors
Statistical Comparisons
Operational Data
Power Quality Analysis
System Status
Budgeting / Tracking
Notification
Modeling / Forecasting
Integrated Solutions
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6. What to Monitor
Utility Feeds Generators
PLC Power
Power Quality
Quality Meter
Meter
● Protective Relay ● Generator
● Protection events status ● Battery Charger
(e.g. overcurrent / earthfault, ● Temperatures
etc) ● Sensors (Water, Fuel, etc.)
● Disturbance ● Output
● Transient / Sag / Swell ● Protective Relay
● Transformer ● Protection event status (e.g.
● Alarms status overcurrent / earthfault,
● Temperatures reverse power, etc)
● Harmonics
● Output
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7. What to Monitor
Transfer UPS
Switch
Power
Power Quality
Quality Meter
Meter
● Transfer Switch ● Uninterruptible Power
● Status change Supply
● Alarms status ● Alarms – battery, bypass,
● Test position summary, online
● Odd & Even Harmonics
● Input/Output disturbance
sag/swell
● Batteries
● Temperature
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8. What to Monitor
Chillers, PDUs
CRAC, HVAC
Power Meter
Power Meter
● Cooling system ● Power Distribution Unit
● Status ● Transformer Over-Temp
● Input power ● Emergency Power Off
● Input THD ● Input power
● Temperature ● Input THD
● Circuit Loading
● Overload limits
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9. What to Monitor
Facility / Racks
Branch Circuit
Power Monitor
● Facility ● Data Center Floor / Racks
● Calculate watts / sq ft in real ● Evaluate loading by floor,
time zone (bay), PDU, rack and
● Benchmark performance individual circuit
● Per-circuit kW / kWh billing ● Identify areas approaching
critical limits and areas of
underutilization
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10. Value Statements
Data Center Need Important Value
High Reliability / Risk The system provides a real-time view of the status &
Management operation of the variety of parallel systems for
redundant power and cooling from the main service
feeds to the servers, storage and networking
devices in the racks
Proactive Operation and The hardware and software systems coordinate
Maintenance proactive notification (alarming) of potential trouble
spots (avoid unexpected outages) and analytic
views of key performance metrics for improved
operation and maintenance practices
Complete Management Advanced operational and power quality reporting
of Critical Systems capabilities facilitate power infrastructure planning
insight for growth & change.
Detailed Cost-allocation Detailed energy cost allocation and departmental/
and Sub-billing customer sub-billing can be accurately calculated –
right down to the circuit level.
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11. Thank You
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